HIGH-RESOLUTION ELECTRON-MICROSCOPY STUDY AND STRUCTURE MODELING OF THE STABLE DECAGONAL AL-CU-CO QUASI-CRYSTAL

被引：57

作者：

CHEN, H ^{[1
]}

BURKOV, SE ^{[1
]}

HE, Y ^{[1
]}

POON, SJ ^{[1
]}

SHIFLET, GJ ^{[1
]}

机构：

[1] UNIV VIRGINIA,DEPT PHYS,CHARLOTTESVILLE,VA 22901

来源：

PHYSICAL REVIEW LETTERS | 1990年 / 65卷 / 01期

关键词：

D O I：

10.1103/PhysRevLett.65.72

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report the observation of a spatial quasiperiodicity in high-resolution electron-microscope images of the thermodynamically stable decagonal Al65Cu15Co20 quasicrystal. Well defined quasiperiods consistent with decagonal symmetry and x-ray-diffraction data have been found. The structure observed is inconsistent with conventional ideal Penrose tiling. There is strong evidence for an entropy stabilization mechanism. © 1990 The American Physical Society.

引用

页码：72 / 75

页数：4

共 25 条

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